[PATCH 2/2] kprobes: print out the symbol name for the hooks

[Huang Shijie]

Print out the symbol name for the hooks, it makes the logs more readable.

Signed-off-by: Huang Shijie <shijie.hu...@arm.com>
---
 samples/kprobes/kprobe_example.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index 2bb190d..ed0ca0c 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -27,24 +27,24 @@ static struct kprobe kp = {
 static int handler_pre(struct kprobe *p, struct pt_regs *regs)
 {
 #ifdef CONFIG_X86
-       printk(KERN_INFO "pre_handler: p->addr = 0x%p, ip = %lx,"
+       printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, ip = %lx,"
                        " flags = 0x%lx\n",
-               p->addr, regs->ip, regs->flags);
+               p->symbol_name, p->addr, regs->ip, regs->flags);
 #endif
 #ifdef CONFIG_PPC
-       printk(KERN_INFO "pre_handler: p->addr = 0x%p, nip = 0x%lx,"
+       printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, nip = 0x%lx,"
                        " msr = 0x%lx\n",
-               p->addr, regs->nip, regs->msr);
+               p->symbol_name, p->addr, regs->nip, regs->msr);
 #endif
 #ifdef CONFIG_MIPS
-       printk(KERN_INFO "pre_handler: p->addr = 0x%p, epc = 0x%lx,"
+       printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, epc = 0x%lx,"
                        " status = 0x%lx\n",
-               p->addr, regs->cp0_epc, regs->cp0_status);
+               p->symbol_name, p->addr, regs->cp0_epc, regs->cp0_status);
 #endif
 #ifdef CONFIG_TILEGX
-       printk(KERN_INFO "pre_handler: p->addr = 0x%p, pc = 0x%lx,"
+       printk(KERN_INFO "<%s> pre_handler: p->addr = 0x%p, pc = 0x%lx,"
                        " ex1 = 0x%lx\n",
-               p->addr, regs->pc, regs->ex1);
+               p->symbol_name, p->addr, regs->pc, regs->ex1);
 #endif
 
        /* A dump_stack() here will give a stack backtrace */
@@ -56,20 +56,20 @@ static void handler_post(struct kprobe *p, struct pt_regs 
*regs,
                                unsigned long flags)
 {
 #ifdef CONFIG_X86
-       printk(KERN_INFO "post_handler: p->addr = 0x%p, flags = 0x%lx\n",
-               p->addr, regs->flags);
+       printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, flags = 0x%lx\n",
+               p->symbol_name, p->addr, regs->flags);
 #endif
 #ifdef CONFIG_PPC
-       printk(KERN_INFO "post_handler: p->addr = 0x%p, msr = 0x%lx\n",
-               p->addr, regs->msr);
+       printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, msr = 0x%lx\n",
+               p->symbol_name, p->addr, regs->msr);
 #endif
 #ifdef CONFIG_MIPS
-       printk(KERN_INFO "post_handler: p->addr = 0x%p, status = 0x%lx\n",
-               p->addr, regs->cp0_status);
+       printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, status = 0x%lx\n",
+               p->symbol_name, p->addr, regs->cp0_status);
 #endif
 #ifdef CONFIG_TILEGX
-       printk(KERN_INFO "post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",
-               p->addr, regs->ex1);
+       printk(KERN_INFO "<%s> post_handler: p->addr = 0x%p, ex1 = 0x%lx\n",
+               p->symbol_name, p->addr, regs->ex1);
 #endif
 }
 
-- 
2.5.5